The document summarizes three Space Shuttle missions - Columbia STS-1, Discovery STS-31, and Endeavour STS-88. The Columbia STS-1 in 1981 was the first Space Shuttle mission and tested the orbiter, boosters, and fuel tank. It succeeded in launching but had heat shield issues upon landing. Discovery STS-31 in 1990 deployed the Hubble Space Telescope, though it initially sent back blurry images. Endeavour STS-88 in 1998 was the first mission to dock with the Russian Zarya module and help assemble the International Space Station.